The 15N NMR spectra of the novel seven-membered 1,2,3,5-tetrazepinone ring systems were studied. The chemical shift of N-2 was found to be signiÐcantly responsive to substituent changes at the phenyl ring. As the electron-withdrawing character of the substituents increased, N-2 became more deshielde
✦ LIBER ✦
[4 + 2]-Cycloadditions with 1,4-Bis(N,N-dimethylamino)-1,3-dienes: Stereochemical Studies and Observation of Radical Ions
✍ Scribed by Prof. Dr. Refiner Sustmann; Dr. Karin Lücking; Dr. Gebhard Kopp; Dipl.-Chem. Michael Rese
- Publisher
- John Wiley and Sons
- Year
- 1989
- Tongue
- English
- Weight
- 384 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0044-8249
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